1.

The sum of 0.01−−−−√+0.81−−−−√+1.21−−−−√+0.0009−−−−−√=?0.01+0.81+1.21+0.0009=?

A. 2.1
B. 2.13
C. 2.03
D. 2.11
Answer» B. 2.13


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